Hi Chen, kernel test robot noticed the following build warnings: [auto build test WARNING on 431c1646e1f86b949fa3685efc50b660a364c2b6] url: https://github.com/intel-lab-lkp/linux/commits/Chen-Wang/dt-bindings-pwm-sophgo-add-bindings-for-sg2042/20240905-201303 base: 431c1646e1f86b949fa3685efc50b660a364c2b6 patch link: https://lore.kernel.org/r/3985690b29340982a45314bdcc914c554621e909.1725536870.git.unicorn_wang%40outlook.com patch subject: [PATCH 2/2] pwm: sophgo: add driver for Sophgo SG2042 PWM config: m68k-randconfig-r133-20240907 (https://download.01.org/0day-ci/archive/20240908/202409080100.h6lX5Asm-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20240908/202409080100.h6lX5Asm-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202409080100.h6lX5Asm-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/pwm/pwm-sophgo-sg2042.c:99:34: warning: 'sg2042_pwm_match' defined but not used [-Wunused-const-variable=] 99 | static const struct of_device_id sg2042_pwm_match[] = { | ^~~~~~~~~~~~~~~~ vim +/sg2042_pwm_match +99 drivers/pwm/pwm-sophgo-sg2042.c 98 > 99 static const struct of_device_id sg2042_pwm_match[] = { 100 { .compatible = "sophgo,sg2042-pwm" }, 101 { }, 102 }; 103 MODULE_DEVICE_TABLE(of, sg2042_pwm_match); 104 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
